CVE-2026-82722: high-severity vulnerability in ash-project ash_admin
AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.5%
Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.
Two LiveView event handlers interned atoms from unvalidated client input: AshAdmin.PageLive's set_actor built modules from the resource/domain payload with Module.concat/1, and AshAdmin.Components.Resource.Show's calculate converted every submitted form key with String.to_atom/1. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.
This issue affects ash_admin: from 0.1.0 before 1.3.1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Affected products
ash-project · ash_adminRelated CVEs — ash-project ash_admin
In the same product, most dangerous first.
CVE-2026-82673HIGHPath traversal in AshAdmin file uploads via unsanitized client filenameEPSS 0.8%CVE-2026-81852LOWAshAdmin ships a hardcoded CSP nonce, allowing nonce-based CSP bypassEPSS 0.5%CVE-2026-75757HIGHAshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomainEPSS 0.5%CVE-2026-77850HIGHStored XSS in AshAdmin relationship typeahead via unescaped label_field contentEPSS 0.5%CVE-2026-82681LOWQuery-parameter injection in AshAdmin row-action links via unencoded string primary keysEPSS 0.5%CVE-2026-81853LOWAshAdmin composite primary key decoding accepts arbitrary fields, enabling a secret-attribute oracleEPSS 0.4%